DATASHEET
ISL28134
5V Ultra Low Noise, Auto-Zero Rail-to-Rail Precision Op Amp
The
ISL28134
is a single, auto-zeroing operational amplifier
optimized for single and dual supply operation from 2.25V to
6.0V and ±1.125V and ±3.0V. The ISL28134 uses auto-zeroing
circuitry to provide very low input offset voltage, drift and a
reduction of the 1/f noise corner below 0.1Hz. The ISL28134
achieves ultra low offset voltage, offset temperature drift, wide
gain bandwidth and rail-to-rail input/output swing while
minimizing power consumption.
The ISL28134 is ideal for amplifying the sensor signals of
analog front-ends that include pressure, temperature, medical,
strain gauge and inertial sensors down to the µV levels.
The ISL28134 can be used over standard amplifiers with high
stability across the industrial temperature range of -40°C to
+85°C and the full industrial temperature range of -40°C to
+125°C. The ISL28134 is available in an industry standard
pinout SOIC and SOT-23 packages.
FN6957
Rev.6.01
Mar 12, 2020
Features
• Rail-to-rail inputs and outputs
- CMRR at V
CM
= 0.1V beyond V
S
. . . . . . . . . . . . 135dB, typ
- V
OH
and V
OL
. . . . . . . . . . . . . . . . . . . . . . .10mV from V
S
, typ
• No 1/f noise corner down to 0.1Hz
- Input noise voltage . . . . . . . . . . . . . . . . . 10nV/√Hz at 1kHz
- 0.1Hz to 10Hz noise voltage. . . . . . . . . . . . . . . . . 250nV
P-P
• Low offset voltage . . . . . . . . . . . . . . . . . . . . . . . . . . 2.5µV, Max
• Superb offset drift . . . . . . . . . . . . . . . . . . . . . . . 15nV/°C, Max
• Single supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.25V to 6.0V
• Dual supply . . . . . . . . . . . . . . . . . . . . . . . . . ±1.125V to ±3.0V
• Low I
CC
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 675µA, typ
• Wide bandwidth . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.5MHz
• Operating temperature range
- Industrial . . . . . . . . . . . . . . . . . . . . . . . . . . . . -40°C to +85°C
- Full industrial . . . . . . . . . . . . . . . . . . . . . . .-40°C to +125°C
• Packaging
- Single: SOIC, SOT-23
Applications
• Medical instrumentation
• Sensor gain amps
• Precision low drift, low frequency ADC drivers
• Precision voltage reference buffers
• Thermopile, thermocouple, and other temperature sensors
front-end amplifiers
• Inertial sensors
• Process control systems
• Weight scales and strain gauge sensors
Related Literature
For a full list of related documents, visit our website:
•
ISL28134
device page
ISL28134
5V
ISL22316
50k
50k
DCP
ISL28134
50Ω
1600
NUMBER OF AMPLIFIERS
ISL26102
24-Bit
ADC
5V VREF
1400
1200
1000
800
600
400
200
V
s
= ±2.5V
V
CM
= 0V
T = -40°C to +125°C
N = 2796
50Ω
ISL21010
0
-2.5 -2.0 -1.5 -1.0 -0.5
0
0.5
1.0
1.5
2.0
2.5
FIGURE 1. PRECISION WEIGH SCALE / STRAIN GAUGE
FIGURE 2. V
OS
HISTOGRAM V
S
= 5V
FN6957 Rev.6.01
Mar 12, 2020
Page 1 of 26
ISL28134
Pin Configurations
5 LD SOT-23
TOP VIEW
OUT 1
V- 2
IN+ 3
4 IN-
5 V+
8 LD SOIC
TOP VIEW
NC 1
IN- 2
IN+ 3
V- 4
8 NC
7 V+
6 OUT
5 NC
Pin Descriptions
ISL28134
(8 Ld SOIC)
2
3
ISL28134
(5 Ld SOT-23)
4
3
PIN
NAME
IN-
IN+
FUNCTION
Inverting input
Non-inverting input
(See Circuit 1)
EQUIVALENT CIRCUIT
V+
A
M
IN+
IN-
V-
Circuit 1
A
N
OSC
4
6
2
1
V-
OUT
Negative supply
Output
V+
OUT
V-
Circuit 2
7
1, 5, 8
5
-
V+
NC
Positive supply
No Connect
Pin is floating. No connection made to IC.
FN6957 Rev.6.01
Mar 12, 2020
Page 2 of 26
ISL28134
Ordering Information
PART NUMBER
(Notes
2, 3)
ISL28134IBZ
ISL28134IBZ-T13
ISL28134IBZ-T7
ISL28134IBZ-T7A
ISL28134FHZ-T7
ISL28134FHZ-T7A
ISL28134ISENSEV1Z
ISL28134SOICEVAL1Z
NOTES:
1. See
TB347
for details about reel specifications.
2. These Pb-free plastic packaged products employ special Pb-free material sets, molding compounds/die attach materials, and 100% matte tin plate plus
anneal (e3 termination finish, which is RoHS compliant and compatible with both SnPb and Pb-free soldering operations). Pb-free products are MSL
classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J-STD-020.
3. For Moisture Sensitivity Level (MSL), see the
ISL28134
device page. For more information about MSL, see
TB363.
4. The part marking is located on the bottom of the part.
PART
MARKING
28134 IBZ
28134 IBZ
28134 IBZ
28134 IBZ
BEEA (Note
4)
BEEA (Note
4)
Evaluation Board
Evaluation Board
TEMP RANGE
(°C)
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +125°C
-40°C to +125°C
TAPE AND REEL
(Units) (Note
1)
-
2.5k
1k
250
3k
250
PACKAGE
(RoHS Compliant)
8 Ld SOIC
8 Ld SOIC
8 Ld SOIC
8 Ld SOIC
5 Ld SOT-23
5 Ld SOT-23
PKG.
DWG. #
M8.15E
M8.15E
M8.15E
M8.15E
P5.064A
P5.064A
FN6957 Rev.6.01
Mar 12, 2020
Page 3 of 26
ISL28134
Absolute Maximum Ratings
Supply Voltage V+ to V- . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6.5V
Voltage VIN to GND. . . . . . . . . . . . . . . . . . . . . . . . (V- - 0.3V) to (V+ + 0.3V) V
Input Differential Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.5V
Input Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20mA
Voltage VOUT to GND (10s) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .(V+) or (V-)
dv/dt Supply Slew Rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100V/µs
ESD Rating
Human Body Model (Tested per JED22-A114F) . . . . . . . . . . . . . . . . . 4kV
Machine Model (Tested per JED22-A115B) . . . . . . . . . . . . . . . . . . . 300V
Charged Device Model (Tested per JED22-C110D) . . . . . . . . . . . . . . 2kV
Latch-up (Passed Per JESD78B) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .+125°C
Thermal Information
Thermal Resistance (Typical)
θ
JA
(°C/W)
θ
JC
(°C/W)
5 Ld SOT-23 (Notes
5, 6)
. . . . . . . . . . . . . . .
225
116
8 Ld SOIC (Notes
5, 6)
. . . . . . . . . . . . . . . . .
125
77.2
Maximum Storage Temperature Range . . . . . . . . . . . . . .-65°C to +150°C
Pb-Free Reflow Profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . see
TB493
Operating Conditions
Ambient Operating Temperature Range
Industrial Grade Package . . . . . . . . . . . . . . . . . . . . . . . . -40°C to +85°C
Full Industrial Grade Package. . . . . . . . . . . . . . . . . . . . .-40°C to +125°C
Operating Voltage Range . . . . . . . . . . . . . . . . 2.25V (±1.125V) to 6V (±3V)
CAUTION: Do not operate at or near the maximum ratings listed for extended periods of time. Exposure to such conditions may adversely impact product
reliability and result in failures not covered by warranty.
NOTES:
5.
θ
JA
is measured with the component mounted on a high effective thermal conductivity test board in free air. See Tech Brief
TB379
for details.
6. For
θ
JC
, the “case temp” location is taken at the package top center.
Electrical Specifications
operating temperature range.
PARAMETER
DC SPECIFICATIONS
V
OS
V
S
= 5V, V
CM
= 2.5V, T
A
= +25°C, unless otherwise specified
.
Boldface limits apply across the specified
MIN
(Note
7)
MAX
(Note
7)
DESCRIPTION
TEST CONDITIONS
TYP
UNITS
Input Offset Voltage
T
A
= -40°C to +85°C
T
A
= -40°C to +125°C
-2.5
-3.4
-4
-15
-300
T
A
= -40°C to +85°C
T
A
= -40°C to +125°C
-300
-550
-
-
-600
T
A
= -40°C to +85°C
T
A
= -40°C to +125°C
-600
-750
-
-
-0.1
120
115
120
120
2.25
-0.2
-
-
-0.5
±120
-
-
±1.4
±2
±240
-
-
±2.8
±4
-
135
-
135
-
-
2.5
3.4
-4
15
300
300
550
-
-
600
600
750
-
-
5.1
-
-
-
-
6.0
µV
µV
µV
nV/°C
pA
pA
pA
pA/°C
pA/°C
pA
pA
pA
pA/°C
pA/°C
V
dB
dB
dB
dB
V
TCV
OS
I
B
Input Offset Voltage Temperature
Coefficient
Input Bias Current
T
A
= -40°C to +125°C
TCI
B
Input Bias Current Temperature
Coefficient
Input Offset Current
T
A
= -40°C to +85°C
T
A
= -40°C to +125°C
I
OS
TCI
OS
Input Offset Current Temperature Coefficient T
A
= -40°C to +85°C
T
A
= -40°C to +125°C
Common Mode Input
Voltage Range
CMRR
Common Mode Rejection Ratio
V+ = 5.0V, V- = 0V
Guaranteed by CMRR
V
CM
= -0.1V to 5.1V
V
CM
= -0.1V to 5.1V
PSRR
Power Supply Rejection Ratio
V
S
= 2.25V to 6.0V
V
S
= 2.25V to 6.0V
V
S
Supply Voltage (V+ to V-)
Guaranteed by PSRR
FN6957 Rev.6.01
Mar 12, 2020
Page 4 of 26
ISL28134
Electrical Specifications
operating temperature range. (Continued)
PARAMETER
I
S
V
S
= 5V, V
CM
= 2.5V, T
A
= +25°C, unless otherwise specified
.
Boldface limits apply across the specified
MIN
(Note
7)
-
-
-
-
-
15
15
-
-
-
MAX
(Note
7)
900
1075
1150
-
-
-
-
15
15
-
DESCRIPTION
Supply Current Per Amplifier
R
L
= OPEN
TEST CONDITIONS
TYP
675
-
-
65
-65
10
-
10
-
174
UNITS
µA
µA
µA
mA
mA
mV
mV
mV
mV
dB
R
L
= OPEN
T
A
= -40°C to +85°C
R
L
= OPEN
T
A
= -40°C to +125°C
I
SC
Short Circuit Output Source Current
Short Circuit Output Sink Current
V
OH
Output Voltage Swing, HIGH
From V
OUT
to V
+
Output Voltage Swing, LOW
From V
-
to V
OUT
Open Loop Gain
R
L
= Short to V-
R
L
= Short to V+
R
L
= 10kΩ to V
CM
R
L
= 10kΩ to V
CM
R
L
= 10kΩ to V
CM
R
L
= 10kΩ to V
CM
R
L
= 1MΩ
V
OL
A
OL
AC SPECIFICATIONS
C
IN
Input Capacitance
Differential
Common Mode
-
-
-
-
-
-
-
5.2
5.6
250
8
10
200
3.5
75
-
-
400
-
-
-
-
-
pF
pF
nV
P-P
nV/√Hz
nV/√Hz
fA/√Hz
MHz
dB
e
N
Input Noise Voltage
f = 0.1Hz to 10Hz
f = 10Hz
f = 1kHz
I
N
GBWP
EMIRR
TRANSIENT RESPONSE
SR
Input Noise Current
Gain Bandwidth Product
EMI Rejection Ratio
f = 1kHz
A
V
= +1, V
IN
= 200mV
p-p
, V
CM
= 0V,
V+ = 2.5V, V- = -2.5V
-
Positive Slew Rate
Negative Slew Rate
V+ = 5V, V- = 0V, V
OUT
= 1V to 3V, R
L
= 100kΩ,
C
L
= 3.7pF
V+ = 5V, V- = 0V, V
OUT
= 0.1V
P-P
, R
F
= 0Ω,
R
L
= 100kΩ, C
L
= 3.7pF
V+ = 5V, V- = 0V, V
OUT
= 2V
P-P
, R
F
= 0Ω,
R
L
= 100kΩ, C
L
= 3.7pF
A
V
= -1, R
F
= 1kΩ, C
L
= 3.7pF
-
-
-
-
-
-
-
-
-2.5
1.5
1.0
0.07
0.17
1.3
2.0
100
3.1
-0.2
-
-
-0.5
-
-
-
-
-
-
-
-
2.5
3.4
-4
15
V/µs
V/µs
µs
µs
µs
µs
µs
µs
µV
µV
µV
nV/°C
t
r
, t
f
, Small Signal
Rise Time, t
r
10% to 90%
Fall Time, t
f
10% to 90%
t
r
, t
f
Large Signal
Rise Time, t
r
10% to 90%
Fall Time, t
f
10% to 90%
t
s
t
recover
V
OS
Settling Time to 0.1%, 2V
P-P
Step
Output Overload Recovery Time, Recovery A
V
= +2, R
F
= 10kΩ, R
L
= 100k, C
L
= 3.7pF
to 90% of Output Saturation
Input Offset Voltage
T
A
= -40°C to +85°C
T
A
= -40°C to +125°C
-3.4
-4
-15
TCV
OS
Input Offset Voltage Temperature
Coefficient
T
A
= -40°C to +125°C
FN6957 Rev.6.01
Mar 12, 2020
Page 5 of 26
